{
  "cveId": "CVE-2022-39209",
  "url": "https://patchblox.com/security/cve/CVE-2022-39209",
  "summary": "CVE-2022-39209 is fixed in 9 products on 1 platform, first by DEBIAN-CVE-2022-39209, released September 15, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "cmark-gfm: cmark-gfm is GitHub\u0027s fork of cmark, a CommonMark parsing and rendering library and program in C",
  "description": "cmark-gfm is GitHub\u0027s fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm\u0027s autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by running \u0060python3 -c \u0027print(\u0022![l\u0022* 100000 \u002B \u0022\\n\u0022)\u0027 | ./cmark-gfm -e autolink\u0060, which will resource exhaust on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in 0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink extension.",
  "published": "2022-09-15T11:15:00Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.02151,
  "epssPercentile": 0.82243,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "cmark-gfm",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.29.0.gfm.6-2",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "cmark-gfm",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.29.0.gfm.6-2",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "cmark-gfm",
      "release": "Debian 14",
      "fixedVersion": "0.29.0.gfm.6-2",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "cmark-gfm",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.29.0.gfm.0-4ubuntu0.1~esm1",
      "fix": "cmark-gfm 0.29.0.gfm.0-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-cmark-gfm-0.29.0.gfm.0-4ubuntu0.1-esm1",
      "released": "2023-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "cmark-gfm",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.29.0.gfm.3-3ubuntu0.1~esm1",
      "fix": "cmark-gfm 0.29.0.gfm.3-3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-cmark-gfm-0.29.0.gfm.3-3ubuntu0.1-esm1",
      "released": "2023-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "ghostwriter",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.1.6\u002Bds-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "ghostwriter",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.1.6\u002Bds-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "ghostwriter",
      "release": "Debian 14",
      "fixedVersion": "2.1.6\u002Bds-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "libcmark-gfm-extensions0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.29.0.gfm.0-4ubuntu0.1~esm1",
      "fix": "libcmark-gfm-extensions0 0.29.0.gfm.0-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libcmark-gfm-extensions0-0.29.0.gfm.0-4ubuntu0.1-esm1",
      "released": "2023-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libcmark-gfm-extensions0.29.0.gfm.3",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.29.0.gfm.3-3ubuntu0.1~esm1",
      "fix": "libcmark-gfm-extensions0.29.0.gfm.3 0.29.0.gfm.3-3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libcmark-gfm-extensions0.29.0.gfm.3-0.29.0.gfm.3-3ubuntu0.1-esm1",
      "released": "2023-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libcmark-gfm0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.29.0.gfm.0-4ubuntu0.1~esm1",
      "fix": "libcmark-gfm0 0.29.0.gfm.0-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libcmark-gfm0-0.29.0.gfm.0-4ubuntu0.1-esm1",
      "released": "2023-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libcmark-gfm0.29.0.gfm.3",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.29.0.gfm.3-3ubuntu0.1~esm1",
      "fix": "libcmark-gfm0.29.0.gfm.3 0.29.0.gfm.3-3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libcmark-gfm0.29.0.gfm.3-0.29.0.gfm.3-3ubuntu0.1-esm1",
      "released": "2023-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-cmarkgfm",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2024.11.20-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "python-cmarkgfm",
      "release": "Debian 14",
      "fixedVersion": "2024.11.20-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "r-cran-commonmark",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.8.1-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "r-cran-commonmark",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.8.1-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "r-cran-commonmark",
      "release": "Debian 14",
      "fixedVersion": "1.8.1-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "ruby-commonmarker",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.23.10-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    },
    {
      "platform": "linux",
      "product": "ruby-commonmarker",
      "release": "Debian 14",
      "fixedVersion": "0.23.10-1",
      "fix": "DEBIAN-CVE-2022-39209",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-39209",
      "released": "2022-09-15T18:15:12Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}